Lantus Expiration

Giomax

Member Since 2018
Bottle says discard 28 days after opening. Vet tells me an open bottle can last six months. How long do you use your vials for?
 
How long do you use your vials for?

Until you see the numbers start to creep up without any other explanation...usually 4-6 months (sometimes more)

By home testing, you'll see when the insulin is starting to lose efficacy.

The only reason it says 28 days is because that's all the company asked the FDA to test for!!
 
Until you see the numbers start to creep up without any other explanation...usually 4-6 months (sometimes more)

By home testing, you'll see when the insulin is starting to lose efficacy.

The only reason it says 28 days is because that's all the company asked the FDA to test for!!
I just started home testing today. It's been a heck of a time trying to get Max's numbers down even with "fresh" insulin. All vet tests still say TOO HIGH. I've had this bottle opened since November 7. Vet said it should be OK until tax time next month. Max's first at-home BG reading tonight was 415. It's not like it's ever been normal since diagnosis, but now I'm worried that the 2-month old insulin might be contributing to such high numbers. He gets six units total in a day.
 
Most of us buy our Lantus from Canada because it's 1/3 to 1/2 the price!!

Here's the info on Buying insulin from Canada

As I said on your other post, I think you may have gone up too much, too quickly. The sad truth is that vets only get 5 hours of "formal" education on diabetes when they're in school....and that covers both dogs and cats! The people here have the 24/7/365 experience on what works and what doesn't and we're always happy to help out another sugarcat mom or dad!
 
How are all of his BG tests still reading super high if he needs a lower insulin dose?
 
Have you kept the Lantus vial in the fridge the entire time? People here get 5-6 months out of a vial if they do so. Humans use up their Lantus much faster than most cats, so it doesn't need to be certified to last longer.
 
Explained in your other thread
It isn't stress though. We don't do random checks at the vet, only fructosamine, which isn't affected by stress, and Max wasn't very stressed when I tested him on my bed earlier.

Unless you're talking about the time I test him at home? I've only done it once, so I can't really compare my own readings. My goal is to do it before each shot tomorrow, in between shots, and maybe at night like I did tonight.
 
Have you kept the Lantus vial in the fridge the entire time? People here get 5-6 months out of a vial if they do so. Humans use up their Lantus much faster than most cats, so it doesn't need to be certified to last longer.
Yep! Fridge all the time. (:
 
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